US8337425B2ActiveUtilityA1

Endovascular device with a tissue piercing distal probe and associated methods

85
Assignee: OLSON MATTHEW JONATHANPriority: Feb 5, 2008Filed: Aug 5, 2009Granted: Dec 25, 2012
Est. expiryFeb 5, 2028(~1.6 yrs left)· nominal 20-yr term from priority
Inventors:Matthew J. OlsonChad J. KuglerRoss A. OlsonDavid B. RobinsonPeter Alan Jacobs
A61B 90/39A61B 2017/3488A61B 17/3207A61M 2025/0096A61B 17/320758A61B 2090/036A61B 17/3478A61B 2017/1107A61B 2017/22048A61B 2017/00336A61M 25/1011A61M 25/007A61B 2017/00438A61B 2017/00778A61B 2017/320044A61M 25/09A61M 2025/09183A61M 2025/09083A61B 2017/22044A61B 2017/22095A61B 2017/22054A61B 2017/22094A61M 25/1002A61B 2017/00252A61B 17/11
85
PatentIndex Score
41
Cited by
316
References
45
Claims

Abstract

Devices, systems and methods for treating diseases and disorders effecting the cardiovascular system of the human body are disclosed. An exemplary blood vessel in accordance with this disclosure comprises a shaft, tip member fixed to the shaft, and a probe extending beyond a distal surface of the tip member. In some useful embodiments, the tip member is relatively atraumatic and the probe is shaped so as to be more likely to produce trauma than the tip member.

Claims

exact text as granted — not AI-modified
1. A device, comprising:
 a shaft; 
 a coil attached to the shaft; 
 a tip member distal to the coil and having a generally hemispherical shape; and 
 a probe extending beyond a distal surface of the tip member and the coil, 
 wherein the probe includes a generally flat distal surface and is adapted and configured to pierce an intimal layer of a blood vessel. 
 
     
     
       2. The device of  claim 1 , wherein the probe extends beyond the tip member by a distance that is greater than about 0.003 inches and less than about 0.012 inches. 
     
     
       3. The device of  claim 2 , wherein the probe extends beyond the tip member by a distance that is greater than about 0.004 inches and less than about 0.008 inches. 
     
     
       4. The device of  claim 1 , wherein the probe has a diameter that is greater than about 0.002 inches and less than about 0.006 inches. 
     
     
       5. The device of  claim 1 , wherein the probe has an aspect ratio of length to diameter that is greater than about 1. 
     
     
       6. The device of  claim 5 , wherein the probe has an aspect ratio of length to diameter that is greater than about 2. 
     
     
       7. The device of  claim 1 , wherein:
 the probe of the shaft has a maximum diameter DW; 
 the tip member has a maximum diameter DT; and 
 the maximum diameter DT is greater than the maximum diameter DW of the probe. 
 
     
     
       8. The device of  claim 7 , wherein a ratio of the maximum diameter DT of the tip member to the maximum diameter DW of the probe is greater than about 3. 
     
     
       9. The device of  claim 1 , wherein the shaft comprises a proximal leg, a distal leg, and a bend disposed between the proximal leg and a distal leg. 
     
     
       10. The device of  claim 9 , wherein the bend extends through an angular range that is greater than about 90 degrees and less than about 180 degrees. 
     
     
       11. The device of  claim 10 , wherein the bend extends through an angular range that is greater than about 120 degrees and less than about 150 degrees. 
     
     
       12. The device of  claim 9 , wherein the distal leg has a length that is greater than about 0.040 inches and less than about 0.300 inches. 
     
     
       13. The device of  claim 1 , wherein a proximal end of the coil is fixed to the shaft and a distal end of the coil is fixed to the tip member. 
     
     
       14. The device of  claim 1 , wherein the tip member comprises a metal. 
     
     
       15. The device of  claim 14 , wherein the metal comprises silver. 
     
     
       16. The device of  claim 1 , wherein the probe comprises a distal portion of the shaft extending beyond a distal surface of the tip member. 
     
     
       17. The device of  claim 16 , wherein the distal surface of the tip member extends between the coil and the probe. 
     
     
       18. The device of  claim 16 , wherein the distal surface of the tip member extends between an outer extent of the coil and the probe. 
     
     
       19. The device of  claim 16 , wherein the tip member is fixed to both the coil and the shaft, and the tip member extends between the coil and the shaft. 
     
     
       20. The device of  claim 1 , wherein the generally flat distal surface intersects a second surface of the probe at a sharp edge. 
     
     
       21. A device, comprising:
 a shaft; 
 a tip member fixed to the shaft having a generally hemispherical shape, the tip member being a discrete component from the shaft; 
 a coil having a proximal end attached to the shaft and a distalmost end directly attached to the tip member; and 
 wherein a distal portion of the shaft extends beyond a distal surface of the tip member, wherein a distal surface of the distal portion of the shaft is a distalmost surface of the device, wherein the distalmost surface is substantially flat and is adapted and configured to pierce an intimal layer of a blood vessel. 
 
     
     
       22. The device of  claim 21 , wherein the distal portion of the shaft extends beyond the tip member by a distance that is greater than about 0.003 inches and less than about 0.012 inches. 
     
     
       23. The device of  claim 22 , wherein the distal portion of the shaft extends beyond the tip member by a distance that is greater than about 0.004 inches and less than about 0.008 inches. 
     
     
       24. The device of  claim 21 , wherein the distal portion of the shaft has a diameter that is greater than about 0.002 inches and less than about 0.006 inches. 
     
     
       25. The device of  claim 21 , wherein the distal portion of the shaft has an aspect ratio of length to diameter that is greater than about 1. 
     
     
       26. The device of  claim 21 , wherein the distal portion of the shaft has an aspect ratio of length to diameter that is greater than about 2. 
     
     
       27. The device of  claim 21 , wherein:
 the distal portion of the shaft has a maximum diameter DW; 
 the tip member has a maximum diameter DT; and 
 the maximum diameter DT is greater than the maximum diameter DW of the distal portion of the shaft. 
 
     
     
       28. The device of  claim 21 , wherein a diameter of the coil is substantially the same as a diameter of a proximal end of the tip member. 
     
     
       29. A device, comprising:
 a shaft; 
 a tip member fixed to the shaft, the tip member being a discrete component from the shaft; 
 a coil having a distalmost end directly attached to the tip member; and 
 wherein a distal portion of the shaft extends beyond a distal surface of the tip member, and a distal surface of the distal portion of the shaft is a distalmost surface of the device, wherein the distalmost surface is substantially flat and is adapted and configured to pierce an intimal layer of a blood vessel. 
 
     
     
       30. The device of  claim 29 , wherein:
 the distal portion of the shaft has a maximum diameter DW; 
 the tip member has a maximum diameter DT; and 
 the maximum diameter DT is greater than the maximum diameter DW of the distal portion of the shaft. 
 
     
     
       31. The device of  claim 29 , wherein a proximal end of the coil is attached to the shaft. 
     
     
       32. The device of  claim 29 , wherein a diameter of the coil is substantially the same as a diameter of a proximal end of the tip member. 
     
     
       33. The device of  claim 29 , wherein the distalmost surface of the distal portion of the shaft is substantially transverse to a longitudinal axis of the shaft. 
     
     
       34. The device of  claim 33 , wherein the distal portion of the shaft has a generally rectangular cross-section along a longitudinal axis of the shaft. 
     
     
       35. The device of  claim 29 , wherein a diameter of the distal portion of the shaft is less than half of a diameter of the tip member. 
     
     
       36. The device of  claim 29 , wherein the distal portion of the shaft includes at least one sharp edge. 
     
     
       37. A device, comprising:
 a shaft; 
 a tip member fixed to the shaft, the tip member being a discrete component from the shaft; and 
 a coil having a distal end attached to the tip member; 
 wherein a distal portion of the shaft extends beyond a distal surface of the tip member and the coil, and a distal surface of the distal portion of the shaft is a distalmost surface of the device, wherein the distalmost surface is substantially flat and is configured and adapted to pierce an intimal layer of a blood vessel wall. 
 
     
     
       38. The device of  claim 37 , wherein:
 the distal portion of the shaft has a maximum diameter DW; 
 the tip member has a maximum diameter DT; and 
 the maximum diameter DT is greater than the maximum diameter OW of the distal portion of the shaft. 
 
     
     
       39. The device of  claim 37 , wherein a proximal end of the coil is attached to the shaft. 
     
     
       40. The device of  claim 37 , wherein a diameter of the coil is substantially the same as a diameter of a proximal end of the tip member. 
     
     
       41. The device of  claim 37 , wherein the distalmost surface of the distal portion of the shaft is substantially transverse to a longitudinal axis of the shaft. 
     
     
       42. The device of  claim 41 , wherein the distal portion of the shaft has a generally rectangular cross-section along the longitudinal axis. 
     
     
       43. The device of  claim 37 , wherein a diameter of the distal portion of the shaft is less than half of a diameter of the tip. 
     
     
       44. The device of  claim 37 , wherein the tip member has a generally convex shape. 
     
     
       45. The device of  claim 37 , wherein the distalmost surface forms at least one sharp edge.

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